Geological Survey (U.S.) & Booth, D. B. (1990). Surficial geologic map of the Skykomish and Snoqualmie Rivers area, Snohomish and King counties, Washington. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Derek B. Booth. Surficial Geologic Map of the Skykomish and Snoqualmie Rivers Area, Snohomish and King Counties, Washington. Reston, Va.: The Survey, 1990.
MLA (9th ed.) CitationGeological Survey (U.S.) and Derek B. Booth. Surficial Geologic Map of the Skykomish and Snoqualmie Rivers Area, Snohomish and King Counties, Washington. The Survey, 1990.
Warning: These citations may not always be 100% accurate.